> Once available, I can't imagine anything better for a DXpedition.
I can ... the K3 with its *full* dual receive and reasonable size.
I am, admittedly, not a fan of "portable" or backpack radio but
the KX3 is simply too small and underpowered for my taste, The
benefits of a "real" 100W radio will still make a K3 the radio of
choice for DXPeditions over the KX3/PPX100 combination.
73,
... Joe, W4TV
On 5/21/2011 11:30 AM, Paul Christensen wrote:
> According to Wayne, Rx performance will be similar to that of the Flex-3000.
> With the KX3's QSD down-convert architecture, my guess is that all
> performance parameters will be superb, with BDR specs probably well behind
> the K3. I'm basing my opinion only on the little information available.
> Who knows what other magic they developed to close the gap in performance.
> It's hard to believe that such performance is attainable in a low-current
> design. Take a look at Dan Tayloe's Norcal 2030. It's nearly a miracle
> that he attained such high performance in a quadrature detector design and
> yet the Rx current is less than 12 mA.
>
> The KX3 effectively combines the best performance and portability attributes
> of the Flex-3000 and Flex-1500 into a highly modular package. Once
> available, I can't imagine anything better for a DXpedition. For
> contesting, FD , etc., the K3 would still surpass it.
>
> I really like the KX3 panel design. I'm still hoping that the next major
> Elecraft transceiver continues with modular architecture to allow for a
> choice in remote control panels between portable and base station sizes.
> There's no longer a need to bind the hardware to the control surface.
>
> Paul, W9AC
>
> Original Message -----
> From: "Rick Prather"<k6limae...@gmail.com>
> To: "Bruce Beford"<bruce.bef...@myfairpoint.net>
> Cc:<elecraft@mailman.qth.net>
> Sent: Saturday, May 21, 2011 11:06 AM
> Subject: Re: [Elecraft] KX3 Baseband filter?
>
>
>> Thank you Bruce,
>>
>> I was also puzzled by that part of the presentation.
>>
>> Rick
>> K6LE
>>
>> On 5/21/2011, at 8:01 , Bruce Beford wrote:
>>
>>> "Baseband" refers to the fact that the QSD down-converts the RF to IQ
>>> streams at directly near-audio range frequencies. The ADC converts this
>>> to
>>> digital, and the DSP then does the demodulation. From the description,
>>> the
>>> "IF" frequencies are in the 10 KHz range. So, the "baseband roofing"
>>> filter
>>> will be a selectable active "audio" filter operating in this range, prior
>>> to
>>> the ADC. This will prevent excessive "out of band" energy from reaching
>>> the
>>> ADC.
>>>
>>> Bruce, N1RX
>>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
